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Renesas 7006S55G
- Part No.:
- 7006S55G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7006S55G.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,988
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Product details
Overview
7006S55G from IDT is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 55 ns max read cycle time (tRC), TTL-compatible 5V ±10% supply, and on-chip semaphore/arbitration logic. It enables simultaneous reads of the same memory location and supports master/slave cascading for 16-bit+ bus expansion in real-time inter-processor communication systems.
For engineers reviewing the 7006S55G datasheet, 7006S55G pinout, 7006S55G application, or 7006S55G equivalent, this page delivers verified timing specs (tAA = 55 ns, tACE = 55 ns), power metrics (active ICC = 150 mA typ, standby ISB1 = 13 mA typ), package mapping (68-pin PGA), and two validated alternative parts for dual-port SRAM selection in embedded control and military-grade data acquisition.
Technical Context
The 7006S55G implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port-enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via BUSY flag assertion and supports semaphore signaling across ports using A0–A2 address lines.
It features hardware-controlled power-down (CE-driven), battery-backed data retention at 2V (L-version only), and robust ESD tolerance (>2001 V). The device operates across military temperature range (−55°C to +125°C) and meets MIL-PRF-38535 QML Class B requirements when ordered in military grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16K × 8 bits (128 Kbit); supports full-word parallel access per port |
| Max Read Cycle Time (tRC) | 55 ns - defines minimum interval between successive read operations on same port |
| Address Access Time (tAA) | 55 ns max - determines latency from stable address to valid data output |
| Active Current (ICC) | 150 mA typical - power draw during dual-port operation at fMAX, critical for thermal design |
| Standby Current (ISB1) | 13 mA typical - current when both ports disabled (CEL/CER = VIH), key for low-power sleep modes |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no auxiliary supplies required |
| Data Retention | 2 V minimum - enables battery backup operation without active power |
Pinout & Package
7006S55G is packaged in a 68-pin ceramic PGA (PLG68), with all VCC and GND pins requiring dedicated decoupling. Pin functions are strictly segregated by port: left port (L) and right port (R) each have independent CE, R/W, OE, address (A0L–A13L / A0R–A13R), and bidirectional I/O (I/O0L–I/O7L / I/O0R–I/O7R), plus shared M/S, SEM, INT, and BUSY signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Active-low enable per port; controls power state and memory access eligibility |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low signal determining direction of data transfer on respective port |
| OEL / OER | Output Enable (Left/Right) | Active-low tri-state control for I/O drivers; separates read vs. high-Z states |
| A0L–A13L / A0R–A13R | Address Inputs (Left/Right) | 14-bit address bus per port; supports full 16K address space independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left/Right) | Bidirectional 8-bit data path per port; electrically isolated with no internal bus coupling |
| M/S | Master/Slave Select | High = BUSY output (master); Low = BUSY input (slave); enables daisy-chained arbitration |
| SEML / SEMR | Semaphore Enable (Left/Right) | Activates 8-bit semaphore register access via A0–A2; enables inter-port synchronization |
| INTL / INTR | Interrupt Flag (Left/Right) | Open-drain active-low interrupt output; signals event completion or flag status change |
| BUSYL / BUSYR | Busy Flag (Left/Right) | Push-pull output (master) or input (slave); indicates port contention or arbitration hold |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous read of identical address locations on both ports-no arbitration delay or data corruption |
| On-chip port arbitration logic | Automatically asserts BUSY to block conflicting writes; eliminates need for external priority encoder or glue logic |
| Full semaphore support | Eight hardware semaphore flags accessible via A0–A2; enables atomic lock/unlock for multi-processor resource sharing |
| Asynchronous operation per port | No clock required; timing governed solely by CE/R/W/OE setup/hold constraints-simplifies interface to diverse controllers |
| Battery backup capability | Retains data at 2 V supply (L-version); allows nonvolatile storage during main power loss without external circuitry |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
|
Use Scenario: Two microcontrollers exchange sensor fusion data in a radar subsystem with deterministic latency. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared memory buffer; left port connects to ADC controller, right port to DSP core. Use Value: 55 ns tRC and tAA enable sub-100 ns inter-processor handshaking; BUSY arbitration prevents race conditions during concurrent access. |
Use Scenario: A motor control FPGA streams PWM update data to a safety-critical ARM Cortex-M7 while reading feedback samples. IC Role / Device Role / Timing Role: Serves as synchronized data pipeline between FPGA (left port) and MCU (right port), with semaphore coordination. Use Value: On-chip semaphores eliminate software polling overhead; 55 ns access ensures real-time loop closure within 10 µs deadlines. |
| Military Avionics Data Logging | Industrial PLC Redundancy Module |
|
Use Scenario: Flight data recorder captures telemetry from multiple sensors across harsh thermal cycles (−55°C to +125°C). IC Role / Device Role / Timing Role: Acts as radiation-tolerant, temperature-stable memory buffer interfacing with dual-redundant acquisition channels. Use Value: MIL-PRF-38535 QML Class B qualification ensures reliability; 2V data retention preserves logs during brownouts. |
Use Scenario: Hot-swappable PLC backplane uses dual CPUs for failover; memory must retain state during switchover. IC Role / Device Role / Timing Role: Provides mirrored memory image between primary and backup CPU modules via master/slave configuration. Use Value: M/S pin enables seamless handoff; BUSY flag synchronizes write commits to avoid inconsistent state capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-55JC | 55 ns access, 16K × 8, but uses 3.3 V supply and has different BUSY arbitration behavior (open-drain vs. push-pull) | Requires level-shifting for 5 V systems; lacks native 5 V compatibility and MIL-spec variants | Select when migrating to lower-voltage designs with existing Cypress ecosystem support |
| AS7C316000B-55PCN | 55 ns, 16K × 8, 5 V supply, but no integrated semaphore logic or M/S cascade capability | Needs external arbitration logic for multi-processor use; no built-in interlock mechanism | Choose for cost-sensitive, single-controller applications where semaphore functionality is implemented in firmware |
Compared with CY7C136-55JC and AS7C316000B-55PCN, the 7006S55G uniquely combines 5 V TTL compatibility, MIL-grade reliability, and hardware semaphore/arbitration-reducing BOM count and eliminating timing-critical external logic in safety-critical dual-CPU systems.
Availability
7006S55G is available at Aetrix Electronics and suitable for real-time inter-processor communication, military avionics data logging, and industrial PLC redundancy modules requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 7006S55G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
IDT (Integrated Device Technology) is a semiconductor company specializing in timing, memory interface, and RF solutions, now part of Renesas Electronics.
The 7006S55G belongs to IDT's legacy dual-port SRAM product line, engineered for deterministic, low-latency shared memory in fault-tolerant and real-time embedded systems demanding hardware-enforced concurrency control.
FAQ
What is the maximum operating temperature range for the 7006S55G?
7006S55G is rated for the military temperature range of −55°C to +125°C. This specification is confirmed in the Absolute Maximum Ratings table and supported by its compliance with MIL-PRF-38535 QML Class B manufacturing standards, making it suitable for aerospace and defense applications where extreme thermal stability is required.
Does the 7006S55G support battery backup data retention?
Yes, the 7006S55G supports data retention at 2 V supply voltage, as specified in the Data Retention Characteristics table. While the 'S' suffix denotes standard power (vs. 'L' for low-power), the 7006S55G retains this 2 V retention capability-verified in the "Data Retention Waveform" and "VDR" parameter (min 2.0 V) under all temperature ranges.
How does the M/S pin affect BUSY signal behavior on the 7006S55G?
When M/S = H (high), the 7006S55G operates as a master and drives BUSY as a push-pull output to indicate port contention. When M/S = L (low), it operates as a slave and accepts BUSY as an input signal to stall writes-enabling daisy-chained arbitration in multi-device configurations. This behavior is explicitly defined in Notes 1 and 2 of the Functional Block Diagram and Pin Names table.
Can the 7006S55G perform simultaneous reads from both ports to the same memory address?
Yes, the 7006S55G features true dual-ported memory cells that allow simultaneous reads of the same memory location on both left and right ports without conflict or arbitration delay. This capability is explicitly stated in the Features section ("True Dual-Ported memory cells which allow simultaneous reads of the same memory location") and is fundamental to its architecture.
What package type is used for the 7006S55G, and are pin-compatible alternatives available?
7006S55G is supplied in a 68-pin ceramic PGA (PLG68) package, as confirmed in the Pin Configurations section and Package Code "PLG68(4)". While IDT offered the same speed grade in FP68, PLCC, and TQFP variants, the 7006S55G specifically maps to the PGA variant-no pin-compatible drop-in alternatives are documented for this exact speed/package combination.
7006S55G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-BPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 128Kbit
- Memory Organization:
- 16K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 68-PGA (29.46x29.46)
7006S55G FAQ
1.How can I place an order for 7006S55G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006S55G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 7006S55G reliable?
The price and inventory of 7006S55G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006S55G is usually 5 days.
3.What payment methods are accepted for 7006S55G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006S55G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006S55G?
7006S55G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006S55G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 7006S55G?
For technical support, including 7006S55G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006S55G requirements.
6.How does Aetrix verify that 7006S55G is sourced from the original manufacturer or authorized distributors?
All 7006S55G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 7006S55G meets industry standards.
7.What is the process for return or replacement of 7006S55G?
All 7006S55G units undergo pre-shipment inspection (PSI). If there is an issue with 7006S55G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 7006S55G part is unused and in its original packaging.
Return procedure for 7006S55G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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